Sexagenary cycle · position 13 of 60

丙子

Yang Fire Rat

Bǐng–Zǐ

This is one fixed meeting of a Heavenly Stem and an Earthly Branch. The stem supplies yang Fire; the branch supplies the Rat and its twelve-position time coordinate.

Branch
Zi
Na Yin
涧下水
Rat in a traditional Chinese landscape
Heavenly Stem · 3/10BingYang Fire
Earthly Branch · 1/12ZiRat · Yang Water
Both sequences advance one position at a time. This exact pair returns after sixty steps.

Two coordinates, read together

What is fixed inside 丙子

A pillar keeps the same stem and branch wherever it is used. What changes is its placement—as a year, month, day or hour—and the other pillars it is compared with.

01 · Visible stem

Bing

Yang Fire, stem 3 in the ten-stem sequence.

02 · Phase relation

Branch restrains stem

Water controls Fire in the five-phase controlling cycle.

A separate traditional association · 纳音

Water beneath the ravine

Na Yin assigns one named image and phase to every pair of consecutive cycle pillars. It sits beside the visible stem and branch coordinates; it does not replace either one.

涧下水

English association
Water beneath the ravine
Associated phase
Water
Shares this Na Yin
丁丑 Yin Fire Ox

The fixed branch register

The Zi coordinate

The same branch names an animal, a double hour, a solar-term month and a compass sector. Those coordinates remain attached to in every pillar that contains it.

Animal
Rat
Branch polarity
Yang
Double hour
23:00–00:59
Month opens at
大雪 Major Snow
Direction
North

Inside this branch · 藏干

Hidden stems carried by

The relationship name below compares each interior stem with Bing as the reference stem.

  1. 01

    Primary interior stem

    正官 Direct Officer
Open all twelve hidden-stem interiors

One address in the sixty-position sequence

Where 丙子 returns

The pair is position 13. Its annual appearances repeat every sixty years; the same pillar can also occur at the month, day or hour scale under those cycles' own rules.

Cycle position
13 / 60
Ten-position decade · 旬
甲戌
Void branches · 空亡
Monkey · Rooster
Stem stage at this branch
冠带 Cap and Gown

Annual returns in the supported range

Every occurrence from 1901 through 2099 is shown.

  1. 1936丙子
  2. 1996丙子
  3. 2056丙子
Read the Chinese New Year and Li Chun boundaries →

A coordinate, not a complete reading

What this pillar establishes

丙子 fixes one stem–branch identity. A chart supplies the placement and comparisons that make that identity usable.

The pair fixes

  • Yang Fire through
  • The Rat branch and its time coordinates
  • 涧下水 Water beneath the ravine as its Na Yin
  • Position 13 in the repeating sequence

The chart still decides

Whether the pair is the year, month, day or hour pillar; which stem is the Day Master; and how the surrounding stems and branches relate to it. The pair alone does not rank a personality, promise an outcome or stand in for the other three pillars.

See how four pillars form a chart →